Band-wheel



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Band Wheel. No. 241,393. Patented May 10, I881.

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Band Wheel.

No. 241,393. Patented May10,l88I.

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- Band Wheel. 4 No. 241,393. Patented May 10, 1881.

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1''" "war UNITED STATES PATENT OFFICE.

JAMES W. MOKEE, OF BRADFORD, PENNSYLVANIA.

BAND-WHEEL.

SPECIFICATION forming part of Letters Patent No. 241,393, dated May 10, 1881.

Application filed April 5,1881. (No model.)

To all whom it may concern:

Be it known that 1, JAMES W. MCKEE, a citizen of the United States, residing at Bradford, in the county of McKean and State of Pennsylvania, have invented certain new and useful Improvements in Band-Wheels; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilledin the art to which it appertains to make and use the same, reference being had to the accompanyingdrawings, and to letters or figures of reference marked thereon which form apart of this specification.

The object of the present invention is to fur nish band and bull wheels for oiLwell derricks of an improved or simplified construction, and also to provide more secure and effective devices for detachably connecting wheels of the character mentioned to their shafts and arbors.

Bull and band wheels are ordinarily constructed of flat boards and sectional rims bolted or spiked to shafts passing through the same, and it has also been proposed to provide a bullwheel having its wheels and gudgeons detachably connected to a shaft, whereby a separate and portable wheel is obtained.

The invention consists in the construction and combination of parts, which will be hereinafter more fully described, and then set forth in the claims.

In the drawings, Figure l isa side elevation of a band-wheel constructed according to my invention. Fig. 2 is a vertical section thereof. Fig. 3 is a vertical section taken through the rim of the wheel. Fig. 4 is a side elevation of a bull-wheel embodying my improvements. Fig. 5 is a detail view of a wooden disk or flange secured to a wooden shaft and bolted to the face of the bull-wheel. Fig. 6 is a longitudinal sectional view of a bull-wheel secured to its shaft. Fig. 7 is a sectional view of a bullwheel secured to a flanged collar. on the end of a wooden shaft, the latter being held within said collar by wings or ribs, forming an integral part of a gudgeon or journal; and Fig.8 is a face view of the flanged collar, gudgeon, and shaft-retaining ribs.

The body or web of the band-wheel used for communicating motion from the engine to the so-called bull-wheel is constructed oftwo sets ofparallel arms, A, which radiate from the center of the wheel. The inner ends of said arms are cut at an acute angle, so that they will fit together and form a solid central or hub portion. The members of one set of arms alternate with those of the other set, and extend or radiate from the centerot'the wheel between the arms of the other set, and are secured to a solid flat-faced rim of the construction. hereinafter described. The inner ends of both sets of arms fit together, and are secured to each other by means of spikes, screws, or pins.

A shaft-opening, B, may be bored through the center of the wheel after the arms have been secured together; or said arms may have concavities made in their lower edges, so as to form a circular opening when the arms are put together.

Face-plates or disks 0, applied to both sides of the center of the wheel, may be fastened by bolts or screwswhich pass through the same and the arms of the wheel. These face-plates or flanges are apertured for the passage of the shaft on which the wheel is mounted, and they may form a permanent part of the wheel and be used in connection with cast-metal flanges, which are secured to the wheel-shaft and serve to retain the wheel between the same; or the face-plates or disks 0 may be secured to the shaft in such a manner as to preventthe wheel from slipping or turning thereon.

The upper or outer ends of the arms comprising the body of the wheel are secured to segmental plates D, which constitute the center of the rim ofthe wheel. These segmental plates break joints with each other, so as to bring them in proper position for the attachment of the outer ends of the armsof the wheel. Spikes, pins, or screws are used for securing thearms to the sides of the segments. outer ends of said arms are beveled on both edges, in order that each arm may fit into the angle formed by the contiguous ends of a pair of segments. In this manner the arms can be firmly secured in position without passing the sameentirely through the rim or face of the wheel.

For the purpose of imparting increased strength to the rim of the wheel and making the same sufficiently wide for the proper reception and retention of the driving-band which leads to the engine, I apply to the outer sides of the segmental plates D a series of curved The rim-plates, E F, which break joints with each other, and are secured to the segmental plates by spikes,screws, orother means. I may, however, use only one set of these rim-plates by making the same sufficiently thick; but I prefer the construction first described, as I am enabled by it to give greater strength and rigidity to the wheel.

The above description has particular reference to the band-wheel of an oil-well'derrick; but it will be obvious that the construction specified is equally applicable to the bull-wheel. This term is applied to the wheel which receives the rope or chain for hoisting the drillrod or other implement from the well, and more generally it refers to the two wheels mounted on a single shaft, and adapted respectively to receive the tug and brake straps. In order to prevent said tug from slipping off the wheel, the periphery thereof is grooved by extending the rim-plates above the segments constituting the rim proper.

I also provide a bull-wheel with two segmental face-strips, M, which project from said wheel, and are secured thereto by spikes, pins, or other fastening devices. These face-strips form a seat or recess for the reception of a projectin g portion, N, of a circular flange or collar, 0. This collar or flange is of a circular form, and is made of wooden sections or layers crossing each other, as shown in Fig. 5. It is secured to the wooden shaft P, of ordinary construction, by spikes or otherwise, and the bullwheel is secured thereto by bolts 29 or other fastening devices.

It will readily be seen that the presence of the face-strips M, receiving the projecting portion N of the flange 0 between the same, will cause the latter to lie in close contact with the wheel and remove all strain from the fasteningbolts, and also prevent the wheel from turning on the shaft.

In the construction shown in Figs. 7 and S the wooden shaft of the bull-wheel has metallic gudgeons or journals Q at each end, which form an integral part of or are cast with a collar or band, B, having the end of the shaft fitted into the same. The collar or band has internal wings or ribs, S, which extend from the inner periphery of said band, and terminate in a central core or body, the outer end or projecting portion of which constitutes the gudgeon proper. The end of the shaft is of a tapering form, and gains or grooves cut in the same receive the wings or ribs of the encircling collar or band, so as to secure an intimate or firm connection between these parts. A vertical flange, T, forming part of the band or collar R, is secured to the face of the bull-wheel by means of bolts and nuts 1". In this instance the central opening of the bull-wheelis made sufficient] y large to receive the collar R, and it rests directly upon the same, and is firmly secured in position by the aforesaid flange T and bolts 1".

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. A sectional band or bull wheel consisting, essentially, of two sets of parallel radial arms, secured to each other at their inner ends, and a rim portion having two sets of segmental plates, to which the outer ends of the radial arms are secured, as and for the purpose set forth.

2. A sectional band or bull wheel consisting, essentially, of two sets of parallel radial arms alternating with and secured to each other at their inner ends, and a rim portion having two sets of segmental plates alternating with each other, the outer ends of the radial arms being secured to the center of said plates, as and for the purpose set forth.

3. In a band or bull wheel, the combination of the parallel sets of segmental plates breakingjoint with each other, and the twoor more sets of radial arms secured to each other at their inner ends, and having the outer end of each arm fitted between the ends of a pair of segmental plates of one set and secured to the face of a segmental plate of the other set, as and for the purpose set forth.

4. In a band or bull wheel, the combination of the outer rim-sections and the intermediate parallel sets of segmentalplates, breakin g joint with each other, with two or more sets of radial arms secured to each other at their inner ends, and having the outer end of each arm titted between the ends of a pair of segmental plates of one set and secured to the face of a segmental plate of the adjoining set, as and for the purpose set forth.

5. A detachable wheel having two segmen= tal face-strips, and a retaining flange or collar of the wheel-shaft, provided with a projecting portion fitting between said strips and secured to the bull-wheel, as and for the purpose set forth. I

6. The collar orband having an external vertical flange, internal wings or ribs, and a central gudgeon forming part of said wings and extending therefrom, in combination with the detachable bull-wheel and its shaft, as herein set forth.

In testimony whereof I affix my signature in presence of two witnesses.

JAMES VVILFRED MCKEE.

Witnesses:

R. B. STONE, O. A. HOTCHKISS. 

